[Chart graphs are poor quality & and useless on some assets ... why?]

For example Rolls Royce regular shares... today's hourly chart is missing, while on other trading platforms (won't mention names) it is perfect and precise.  And it's not just RR, other asset charts have been useless for months and years, just RR is in my portfolio. Annoying, and feels like sloppy work done by IG administrators. Has anyone received any comments from IG about this situation in the past? I have been with IG since 2018 and noticed, that the number of poor-quality chart graphs is increasing.

[3xETP price stuck vs spot silver!?]

Hi, I did fair amount of reading and googling on EPT, ETF and understand that for short time investment it is a great opportunity to triple  your gains as well the losses. What I'm struggling to understand is why 3xETP silver price barely moves when spot silver nearing to April month ATH. This is happening right now and although I know that "humble 5% " ETP/ETF share price always moves against the favor of the buyer and it is kind of OK and accepted, I see much much bigger price difference on my account. I took some time and traced/ marked price on spot silver and ETP during recant three buy's that i have made, so it is easy to see...  Roughly my profit should be around 30% higher right now... or it will catch up tomorrow? :))) all comments are greatly appreciated.